Bergman Cyclization of Fluorinated Benzo-Fused Enediynes to Naphthalene Derivatives: Syntheses and Structures
作者:Christopher M. Kane、Tiffany B. Meyers、Xin Yu、Michael Gerken、Markus Etzkorn
DOI:10.1002/ejoc.201001747
日期:2011.6
Fluorinated naphthalenederivatives were prepared by Bergman cyclization of fluorinated benzo-fused enediynes. This route provides access to the aromatic target compounds in a two-step procedure from commercially available precursors, via a Sonogashira cross-coupling and a subsequent, thermally initiated Bergman cyclization. Crystal structures of six fluorinated benzo-enediynes and three fluorinated